Sion weather in December (Canton of Valais, Switzerland)
What can you expect from the weather in Sion during December? Check out this comprehensive weather guide.
In December, Sion generally has very low temperatures and high snowfall. December falls within the winter season. Daytime temperatures hover around -3°C, while nights can cool down to about -12°C. It is a very cold month, so be prepared and make sure to dress up warm. It's always better to be prepared than to find oneself shivering in the cold.
Sion in December usually receives high snowfall, averaging around 139 mm for the month. Snow is expected on roughly 14 days.
The city usually sees around 70 hours of sunlight, indicating fewer sunny days.
If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Sion. July and August typically offer the most optimal weather. In contrast, January, February, March, April, May, October, November and December tend to have less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Sion climate page with graphs.
Sion, monthly averages in December
Min Temperature
-12°C
Max Temperature
-3°C
Chance of Rain
48%
Precipitation
139 mm
Rainy days
14 days
Humidity
83%
Windspeed
4 km/h
Sunshine
70 hours
Percentage Sunshine
50%
Where to go in Switzerland in December
Find out more about the weather in Switzerland in December and which places have the best weather conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in Sion in December?
Visitors traveling to Sion should plan on bringing winter clothes, snow boots and a warm winter coat. There will be periods of snow.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do in December.
Interested in more climate information?
Weather and Climate provides you with all the information you need about the climate in Sion.
Our site offers climate and forecast data for every country in the world. Are you going to Switzerland? On this website you can find historical weather averages for many cities in Switzerland. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.
